About this 3D model

Needed a simple, yet effective cover for my 6 inch duct fan that I use to vent my 3D Printer Enclosure through my window. When the fan is not running, air , moisture , and humidity can pass through the fan if not properly covered, which is why I designed and printed my own cover. The model is meant to be printed in place , without supports , and rigid/solid enough to prevent any pass through of the elements.